Specification
Rates Power
USB-C Max Power Voltage & Current
USB-A Max Power Voltage & Current
IP Rating
Conversion Efficiency
Warranty
S35 Portable Solar Panel | 35W, USB-A & Type-C
Specification
Rates Power
USB-C Max Power Voltage & Current
USB-A Max Power Voltage & Current
IP Rating
Conversion Efficiency
Warranty
GEYOTO S35 Portable Solar Panel
Carry light catch light
Lightweight & Bend-Resistant
IP68 Water & Dust Resistance
Panel in Sun & Gear in Shade
Charge More Wherever You Go
Cup Sized & Ultra-Portable
Smart Status Indicator
Power That Goes Anywhere
1.54 lbs (700 g)
Foldable Design. Easy to Carry.
Up to 25.4% Conversion Efficiency
Turn available daylight into useful power for the devices you carry.
*Actual output varies with sunlight, angle, temperature, shading, and device conditions.
Power That Fits the Way You Live
From weekend trips to everyday backup, GEYOTO keeps reliable power within reach.
Power Your Everyday Essentials
S35 → USB-C/USB-A → Devices
Take a Closer Look
Thoughtfully Designed, Front to Back.
Specs
General
What's in the box?
S35 Package Includes
GEYOTO S35 Solar Panel (x1)
USB C To C Cable (x1)
Carabiner (x2)
Storage Pouch (x1)
User Manual (x1)
Download
FAQs
What is the GEYOTO S35 Portable Solar Panel?
The GEYOTO S35 is a lightweight, foldable 35W solar panel designed for directly charging phones, tablets, power banks, cameras, GPS devices, and other USB-powered electronics. It is ideal for camping, hiking, travel, emergency preparedness, and everyday outdoor use.
Does the S35 always produce 35W of power?
35W is the panel’s rated maximum output under standard laboratory conditions. Actual output depends on sunlight intensity, panel angle, temperature, cloud cover, shading, surface cleanliness, and the power accepted by the connected devices.
What charging ports does the S35 provide?
The S35 features two output ports:
- One USB-C port supporting PD 3.0 charging up to 20W
- One USB-A port supporting QC 3.0 charging up to 18W
Under suitable sunlight, the two ports can charge compatible devices simultaneously, with up to 35W of total available solar power.
How can I get the best charging performance?
Fully unfold the panel and place it in direct sunlight. Position the solar surface toward the sun and keep it free from shadows, dust, leaves, and other obstructions. Reposition the panel periodically as the sun moves.
Can the S35 work on cloudy days?
Yes, but output will be significantly lower and may fluctuate as sunlight changes. For more stable charging, connect a power bank to the panel first and then use the power bank to charge sensitive electronic devices.
Why does charging sometimes stop and restart?
Passing clouds, shade, an incorrect panel angle, or insufficient sunlight can cause the output to drop. Some devices may automatically stop charging when the available power becomes too low. Reposition the panel in stronger sunlight and reconnect the device if necessary.
Is the S35 waterproof?
The solar panel surface is rated IP68 for water and dust resistance. However, the junction box, USB ports, and cable connections are not covered by this rating and must be kept dry. Always dry the panel completely before folding and storing it.

















